Audible indicating adjusting device



Nov. 30, 1937. H. F. MOSSBERG AUDIBLEV INDICATING ADJUSTING DEVICE Filed March 23, 1937 3 Kigal- 2-- 2| 3 l0 ll Q Tl l INVENTOR HAROLD EMossBERs.

BY M ATTORNEY 33. GEOMETRlCAL \NSTRUMENTS.

Patented Nov. 30, 1937 UNITED STATES tieercn llUUlli PATENT OFFICE AUDIBLE INDICATING ADJUSTING DEVICE Harold F. Mossberg, New Haven, Conn., assignor to 0. F. Mossberg & Sons, Inc., New Haven, Conn., a corporation of Connecticut Application March 23, 1937, Serial No. 132,561

11 Claims.

This invention relates to adjusting devices and more particularly to an audible indicating adjusting device wherein, when a member thereof moves relatively to another member, an audible snapping sound will be produced to audibly indicate the amount of such relative movement.

The device of this invention is especially useful when applied to a support or mount such as used for supporting a telescope sight to a firearm, but it is obvious that it is not limited to this particular use and that its novel features and principles may be associated with many other adjustable supports and mountings where an audible indication is desired.

One object of this invention is to provide an improved form of audible indicating adjusting device.

Another object is to provide in an adjusting device of the above type a manually rotatable member adapted to be rotated relatively to another member, in combination with cooperating audible sound producing parts, which are actuated when the rotatable member is rotated relatively to the other in either direction.

A further object is to provide in a device of the above nature cooperating audible snapping sound producing parts one of w lnc is carried by a rotatable member and which are adapted to be actuated when the rotatable member is rotated relatively to another member, to axially adjust the members relatively to each other.

A still further object is to provide an adjusting device adapted to produce an audible snapping sound when it is being actuated to cause adjustment to the device to which it is applied and which is constructed of a minimum number of parts, is inexpensive to manufacture, relatively simple in construction, compact, and very efiicient and durable in use.

With the above and other objects in view which will appear as the description proceeds, there has been illustrated in the accompanying drawing one form in which the invention may be conveniently embodied in practice.

In the drawing, wherein like reference characters designatelike parts throughout the several views:

Figure 1 is a side view of an article requiring adjustments and comprising a telescope sight supported in a mount and adapted to be adjusted relatively thereto by an adjusting device embodying the features of this invention;

Figure 2 is an enlarged section taken on line 2-2 of Figure 1 to show an end view of the mount and a side view of the adjusting device of this'invention;

Figure 3 is a further enlarged section of the adjusting device of the invention taken on line 3-3 of Figure 1;

Figure 4 is a section taken on line 44 of Figure 3;

Figure 5 is a greatly enlarged side view of a portion of the device and looking in the direction of arrow 5 in Figure 4; and

Figure 6 is an exploded view of the device of this invention, the parts being shown in perspective.

For the purpose of illustrating a practical use for the adjusting device of this invention it has been shown in the drawing as being applied to a mount Ill for a telescope. sight ll of the type generally used with firearms. Both the lateral and vertical adjustments of telescope sights are often required and therefore the mount it! has been provided with two similar adjusting devices which may be actuated for this purpose in cooperation with a stop pin l2. The stop pin l2 may be, as is usual, spring pressed to provide a cushion for the telescope and which then may act to hold the sight ll firmly in engagement with adjusting devices.

The stationary part, or mount H), in the instance shown, is provided with a pair of tubular members or sleeves I3 disposed at right angles to each other. Each of the sleeves I3 is provided with internal threads l4, and diametrically opposed slots l5 and I6 in its side wall. The remaining portions of the mount Ill, particularly required for its use as a support for the telescope sight II, are not especially pertinent to this invention and will be only briefly described. The mount l0 may be provided with a base I! adapted to be secured upon a suitable dovetail lug provided on the barrel l8 of afirearm, by means of a dovetail groove l9 and a clampscrew 20. The body of the mount I0 is in the form of a ring through which the sight ll extends while resting upon the stop pin l2, which as above noted is generally spring pressed outwardly into the ring shaped body of the mount. An adjusting device embodying the features of this invention is shown associated with each member 13.

The adjusting device of this invention includes an inverted cup shaped part 2| having its closed end 22 provided with an exterior rim 23 to adapt it to be manually engaged to readily rotate it. The part 2| has a plurality of equally spaced inverted V shaped notches 25 formed upon its cylindrical open edge 24. Visible indicating marks 26 corresponding to the V shaped notches 25 may be provided on the outer surface of the part 2| for comparison with a mark 21 on the sleeve |3 if desired. A cylindrical stud 28 having a reduced end 29 which is permanently secured to the closed end 22 of the part 2|, extends through and is concentric to the part 2|. The stud 28 has an enlarged threaded end portion 32, and is of sufficient length to extend beyond the notched edge 24 a desired amount, and to dispose the threaded end 32 wholly beyond this edge.

A catch bar 33 is provided, which has a central ring portion 34, adapted to slidingly fit over the stud,28. The bar- 33 has a fiat finger 35 extending from the one side of the ring portion 34 and a V shaped finger 36 extending from the other side thereof. The finger 36 is diametrically aligned with the fiat finger 35. The V shaped portion 31 of the finger 36 is slightly raised above the upper surface of the bar 33 toward the open end of the part 2| to adapt it to enter into any one of the V shaped notches 25. A coiled spring 36 surrounds the stud 28 and is adapted to react between the threaded end 32 and the ring 34 to constantly urge the catch bar 33 against the edge 24 and to maintain the V shaped portion 31 of-the finger 36 in one of the notches 25. The outer end of the finger 35 may be broadened as shown to form a head 39 adapted to extend over two or more of the notches 25 to prevent it catching therein.

In reference to the above it will be obvious that rotation of the part 2| relatively to the catch bar'33 will cause the fingers 35 and 36 to ride over'the edge 24 and as the V-shaped portion 31 of the finger 36 is raised out of one of the notches 25 and snapped into the next succeeding one, due to this relative movement between the parts, an audible snapping sound will be produced, indicating such relative movement. vAs the notches 25 are equally spaced peripherally about the edge 24 each snapping sound will indicate a known part of the revolution of one part relatively to the other.

When the above described adjusting device is applied in association with a stationary part, such as the mount I0 having the slotted sleeves l3, the fingers 35 and 36 associated with the part 2| are disposed in the opposite slots l5 and I6 respectively While the threads on the end 32 are threadingly engaged with the threads in the sleeve l3. Rotation of the part 2| relatively to the sleeve 3 will therefore cause the catch bar fingers 36 to repeatedly produce a snapping sound audibly indicating the amount of axial adjustment being made between the part 2| and the sleeve I3, by the axial advancing or retracting movement caused by the cooperating threads on these respective parts. As each snap indicates a predetermined amount of rotation, it also indicates a proportionate amount of such axial adjustment and a user is thereby able to determine, by noting the number of snaps, the amount a telescope sight, for instance, is adjusted either laterally or vertically relatively to the firearm barrel.

While the adjusting device of this invention is illustrated as applied to a particular article requiring adjustment and is described as being of a specific form it will be understood that the invention may be applied to other articles for a similar use and embodied in other forms without departing from the spirit or essential attributes thereof. It is therefore desired that the present embodiment be considered in all respects as illustrative and not restrictive, and it will be further understood that each and everynovel feature and combination thereof present in, or possessed by, the device herein disclosed, forms a part of the invention included in this application.

What is claimed as new and for which it is desired to secure Letters Patent for, is:

1. An audible indicating adjusting device including a cylindrically ended member having notches formed in its end edge, a stud secured to said member and extending axially therethrough and having an enlarged head portion provided with screw threads extended below said notches and edge, a catch bar rotatably mounted on said stud between the notched edge and said head portion and extending diametrically across said end edge, said bar having a raised portion to engage in said notches, and a spring coiled about said stud and reacting between'said bar and said head portion to press said bar against this notched end edge whereby audible snaps will be produced when said bar and said member are relatively rotated.

2.. An audible indicating adjusting device including a cylindrically ended member having notches formed in its end edge, a stud secured to said member and extending axially therethrough and having an enlarged head portion provided with screw threads extended below said notched end edge, a catch bar rotatably mounted on said stud between the notched end edge and said head portion and extending diametrically across said end edge, one end of said'bar having a raised surface to engage in said notches and the other end being broadened to overlie a plurality of said notches, and a spring to press said bar against said notched end edge whereby an audible snapping sound will be produced when said bar and said member are rotated relatively to each other.

3. In an adjusting device, a rotatable member having a cylindrical end with notches formed in its end edge, a stud having a portion extending below said end edge, a cross bar adapted to engage in said notches and being mounted on said stud and rotatable thereon relatively to said member, a spring member to press said bar against said end edge, said extending portion of said stud being adapted to cooperate with a stationary part to be moved axially to engage and adjust another part relatively to the stationary part when said stud is rotated, and said bar being adapted to be engaged by a stationary part to be held against rotation by said member whereby rotation of said stud to cause the aforesaid adjustment will be audibly indicated by said bar as it rides over the notches in said end edge.

4. In an adjusting device a cylindrical first member having an end edge, a stud permanently secured to said first member and having a head portion extending beyond the end edge thereof, a second member rotatively mounted upon said stud above the head portion thereof, a spring reacting against said head portion and said second member to urge it into engagement with the end edge of said first member, and cooperating means between the end edge of said first member and said second member to produce audible snapping sounds when one member is rotated relatively to the other.

5. In an adjusting device a cylindrical member having an end edge, a stud permanently secured to said member and having a head portion ex- 33. GEOlVlETRI'CALINixTRUIVHZNTSc tending beyond the end edge thereof, a bar like member rotatively mounted upon said stud above the head portion thereof and extending across the end edge of said cylindrical member, a spring reacting against said head portion and said bar like member to urge the latter into engagement with the end edge of said member, and notches on one member cooperating with a notch entering part on the other member to produce audible sounds when one member is rotated relatively to the other.

6. An audible adjustment indicating device comprising a member having a stud permanently secured to and extending therefrom, a bar like member rotatively mounted on said stud and extending across a surface of said first member, a spring to press said first member and said bar like member together, one of said members having notches cooperating with a notch entering part carried by the other member to produce audible snaps when said bar like member is rotated upon said stud.

7. An audible adjustment indicating device comprising a cup shaped member having a plurality of V-shaped notches spaced about its open end edge, a stud secured to and extending axially through said member and beyond its open end edge, an enlarged end on said stud beyond said open end edge, a cross bar rotatably mounted on said stud between said notched open end edge and said enlarged stud end, said cross bar having a V-shaped part adapted to enter the V- shaped notches in said end edge and a spring reacting between said cross bar and said enlarged stud end to constantly press said bar against said notched end edge.

8. In combination a cylindrical stationary part having internal threads and diametrically opposed axially directed slots, a stud having a threaded end adapted to be screwed into said part when rotated, for axial adjustment relatively thereto, a member having a circular open end secured to said stud to rotate therewith, a cross bar encircling said stud with an end slidably disposed in each slot in said stationary part and being rotatively mounted on said stud, said member having notches spaced apart about its open end edge and one end of said cross bar being formed to enter said notches one at a time, and a spring acting against said cross bar to constantly urge the notch entering end thereof into a notch in the open end edge of said member whereby an audible snapping sound will be produced when said stud is rotated relatively to said stationary part to indicate the amount of its axial adjustment relatively thereto.

9. An audible indicating device including a cylindrical member having notches formed on one of its end surfaces, a stud secured to and extending from the notched end of said member, a bar rotatably mounted on said stud and having an end extending over the notched end surface of said member and being adapted to engage in said notches, and resilient means reacting between said stud and said bar to urge the bar into engagement with the notched end of the member, whereby audible snapping sounds will be produced when the bar and the member are relatively rotated.

10. In an audible indicating device, a cylindrical supporting member, a cylindrical member adapted to telescopically receive said supporting member and having notches formed on one of its end surfaces, a stud secured to and extending from the notched end of said member, a bar rotatably mounted on said stud and having an end extending over the notched end surface of said member and being adapted to engage in said notches, co-operating means between said bar and said supporting member to prevent relative rotation therebetween and resilient means reacting between said stud and said bar to urge the bar into engagement with the notched end of the member, whereby audible snapping sounds will be produced when the bar and the member are relatively rotated.

11. In a device for mounting a telescope sight having a tube to the barrel of a firearm, a mount through which the sight tube extends, and means to adjust the tube in the mount relatively to the barrel of the firearm including a cylindrical sleeve on the mount, an inverted manually rotatable cup shaped member telescopically positioned over an end of said sleeve, a stud secured to said member and extending therefrom through said sleeve to engage the tube of said sight, co-operating threads on said stud and said sleeve, a bar rotatively mounted on said stud and extending across the open end of said member, said sleeve having axially directed slots in its side wall through which said bar extends, a spring reacting between said bar and said stud to urge the bar against the end edge of said member, and co-operating means between said bar and said member to produce audible snapping sounds when said member is rotated to screw said stud into and out of said sleeve.

HAROLD F. MOSSBERG. 

